Fire-escape



(No Model.)

S. HARGRAVE, Sr., & A. M. LEE.

FIRE ESCAPE.

No. 321,212. Patented June 30, 1885..

UNITED STATES ATENT DEFICE.

SAMUEL HARGRAVE, SR, AND ARTHUR M. LEE, OF POMONA, ILLINOIS.

FIRE-ESCAPE.

SPEGIFICATION forming part of Letters Patent No. 321,212, dated June 30, J 885. Application filed April 29, 18 85. (No model.)

To all whom, it may concern.-

Be it known that we, SAMUEL HARGRAVE, Sr., and ARTHUR M. LEE, citizens of the United States, residing at Pomona, in the county of Jackson and State of Illinois, have invented a new and useful Fire-Escape, of which the following is a specification.

Our invention relates to improvements in that class of fire-escapes having collapsible cages and adjustable apparatus for operating the same, the whole being portable; and. its objects are, first, to place the parts in'sueh juxtaposition and correlations as that they will automatically assume and maintain a position of utility after projection from a window; and, second, to control the speed of the cage therefrom. I accomplish these objects by the apparatus illustrated in the accompanying drawing, in which- The figure represents a front elevation of a device embodying the principles of my invention.

Similar designations indicate corresponding parts.

A A represent the window-sill.

B B are frame-bars having terminal hook O O and perforations B R S S.

C G are frame-bars having perforationsT T at one end and two at the other end. .(Not shown.)

D D are similarly-mounted drums, which serve to transmit applied power to the descent and elevation of the cage.

D is a pulley or drum on the same shaft E, upon which the cable V winds when motion is imparted, while the cables GG unwind,and conversely.

F is a self-adj usting slotted guide-board suspended from the shaft E.

H is the collapsible cage, formed of fabric coated with asbestus and a metal bottom.

K is a clamp by which the speed of the cage can be controlled by the occupant thereof. A mechanical equivalent may be substituted therefor without altering the effect.

L is the window-sash, illustrating that it is only essential to raise the lower sash and throw the escape out in order toinsure its opera-tion.

M is a loose selfadjusting metal bar of greater length than the width of the window. It is passed through the holes T T in the frame-bars O O,and adapts its horizontal position to the variable angle between the framebars B B O O.

N N are right-angled pins rigidly affixed to the window-sill, serving to engage the hooks O O on the bars B B, and thus maintain the equilibrium of the structure. P is a bar connecting the frame-bars B B and making their movements synchronous.

The operation will be readily understood to be as follows: Normally, the apparatus may be placed together in a recess under the window or elsewhere. \Vhen utility is desired,

the hooks O O are inserted in the pins N N,

and the device may then be projected from the window. Each part then spontaneously assumes a location approximately as that shown in the drawing, the bar M naturally 7o assuming a position parallel to the bar P, and thus serving to hold the upper part of the mechanism while its lower portion is maintained pivotally by the pins N N.

\Vhat We claim, and desire to secure by Letters Patent of the United States, is-

1. The window-sill A A, having pins N N, bars B B C O M, hooks O O, shaft E, pulleys D D D, and cables G G V, in combination with the collapsible cage formed in the manner herein described.

2. The bars B B O 0, connected by bar P and shaft E, having pulleys D D D, pinsN N, hooks O O, sill A A, bar M, guide-frame F, slotted, as shown, and cables G G V,in combination with the cage H and clamp K, the whole co-operating in the manner and for the purpose set forth.

SAMUEL HARGRAVE, SR. ARTHUR M. LEE.

Witnesses:

JULIAN J. KOENIG. JOHN A. ATOHISON. 

